788 KECORD OF CURRENT RESEARCHES RELATING TO 



roof of the moutli of fishes, and with their modified mouth-parts, 

 which form a sucking tube, living on the blood of their hosts. These 

 forms are described under the following generic and specific names, 

 those marked (*) being new: — ^ga tridens, Mrsuta* crenulata, 

 Wehhii, Stroemii, rosacea, serripes, psora, Deshayesiana, antillensis,* 

 magnifica, monoplitlialma, nodosa,* opJitlialmica, tenuipes* dentata,* 

 incisa,* ardica, ventrosa and spongiophila, Bocinela danmoniensis, 

 insularis,* Dumerilii, maculata,* americana,* orientalis,* australis,* 

 signata * and aries,* Alitropus typus and foveolatus* Full descriptions 

 are given of the male, virgin, ovigerous female, and the young. The 

 text is in Latin, and there are plates. 



Ostracoda of Scotland.* — The Natural History Society of Glasgow 

 are publishing catalogues of the fauna of Scotland, with special 

 reference to Clydesdale and the western district, and amongst them is 

 one on the fresh and brackish-water species of Ostracoda by Mr. D. 

 Eobertson. 



Forty-one species are given, of which three are new (Cypris 

 gramdata, Candona euplectella, and C. nitens). 



Those which may be considered to belong exclusively to brackish 

 water, but never by choice to be purely marine, are Cypris salina, 

 Cypridopsis aculeata, Cytheridea torosa, and its variety teres. Cypris 

 incongruens and Cypridopsis obesa are frequently found in brackish 

 water, but as frequently in purely fresh water. 



Many other species are occasionally met with in water more or 

 less brackish, as in ponds a little above high-water mark, subject to 

 the spray of the sea during high tides and storms, but chiefly in fresh 

 water quite beyond the reach of marine influences. Eeference is 

 Hiade to a group of small ponds lying mostly within a few yards of 

 each other along the south-west shore of the island of Cumbrse, only 

 a little above high-water mark. These appear to be subject to an 

 equal amount of sea-spray, and to be exposed to similar conditions, 

 yet their microscopic fauna are found, when compared, to differ 

 widely. A list of the Ostracoda found in ten of these sub-brackish 

 patches of water shows the great number of reputed fresh-water 

 species associated with those which constantly affect brackish water, 

 and also the diversity in the numbers and grouping of species existing 

 between one pond and another. This mixtui-e of fresh and brackish- 

 water species is all the more remarkable, as none of these ponds 

 communicate with the others, nor with any fresh-water stream. 



The author indicates (1) where the Ostracoda are principally to 

 be found, (2) what season of the year is most favourable, (3) by what 

 means secured, and (4) how to preserve them. We can only give a 

 very condensed statement of the author's views on these points, and 

 the original paper should be referred to. 



The places where to he found are lakes, tarns, ponds, lagoons, 

 canals, ditches, and often in very small patches of water, and in 

 slow-running streams; but in the latter by no means commonly, 



* Appended to part 1 of ' Proc. Nat. Hist. Soc. Glasgow,' iv. (1880) (separate 

 title-page and paging). 



